Well I know this sounds silly, but, in the case of yum people use it
on
non-redhat platforms. I'd actually feel bad telling them 'yah you need
this red hat specific library, named rhpl' in order to use it.
But you don't feel the same about "You need the gnu C library" or
"gnu C compiler" or "Berkeley Yacc" or "Apache webserver" or
or that
matter "Linux"...
Its only a problem if the library you really need makes it impossible to
port the app over surely ?
putting the name of a commercial vendor in the library name is kinda
'blah' anyway.
IMHO it is the same in all cases. It's about credit. Whether you'd keep
the command line redhat-config-foo on a non RH system is a different
matter altogether.
Alan